The utility model discloses a rudder transmission, including main rudder and vice rudder, the internal upside of main rudder rudder be provided with with main rudder fixed connection's hollow outer pole, be provided with interior pole in the hollow outer pole, hollow outer pole with interior pole is coaxial and but mutual independence ground rotates, the main rudder rudder is internal be provided with with interior pole fixed connection and coaxial action wheel, vice rudder be internal be provided with with vice rudder fixed connection from the driving wheel, the action wheel with pass through engaged with synchronous belt drive from the driving wheel. The utility model discloses straight flight time resistance can be reduced, the rudder life -span is increased, control of vice rudder and main rudder control mutual independence, it is more nimble to operate.